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Hal is asked to write an exponential function to represent the value of a $10,000 investment decreasing at 2% annually. What multiplicative rate of change should Hal use in his function?

User Jatt
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2 Answers

4 votes
his function should look like

M=10000*(1.00-0.02)^(y)
or
User Roscoe
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2 votes

P(1) = P(0) [exp (rt)]
9,800 = 10,000 (0.98)^1

r = loge (0.98) = ln (0.98) = -0.0202

P(t) = P(0)[exp(-0.0202t)]
User Yahia Farghaly
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